Permissions
What not to mention around him?: His height or his brother.
Mind Control: Highly unlikely as he's an angel of a high degree.
Mind Reading: Unlikely, but possible as Mika isn't the most mentally inclined person. But, natural defenses because he's an angel so it will be difficult.
Deceit (Lies, manipulation, illusions, ect): He's kinda simple sometimes. It's a maybe thing and depends on the situation and how powerful.
Verbal abuse: It won't even phase him, he'll give back more than he gets.
Physical abuse: He'll love it and see that as an open invitation for a fight.
Serious injury/death: If you're strong enough to? Go right ahead. He loves fighting.
Kissing: It'll most likely freak him out, but you're free to try. Male or female, he'll freak out equally. Well. He might get more violent and pissed if it's a big breasted chick or a transvestite.
Hugging: It'll confuse him and throw him off guard. Depending on the person it'll determine how he acts.
Invasion of personal space(leaning on, ect): Michael does not know this 'personal space' you speak of.
Sexual advances: Depends on the person, but if he doesn't know them very very well it'll end in him becoming violent and pissy.